| Presentation | 2017-05-25 Local linear predictive coding for characterizing electro-magnetic noise Fumihiko Ishiyama, Yuichiro Okugawa, Yoshiharu Akiyama, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We are investigating methods of characterizing electric noise to identify the source of the electric noise. For the purpose, we are investigating methods based on the linear predictive coding (LPC). We applied the method to characterizing acoustic noise, and we developed a spectral analyzer which displays spectrum based on the method. Yule-Walker equation is used to solve linear predictive coding, and the aim of the equation is to reduce calculation cost by replacing autocorrelation matrix with a Toeplitz matrix to apply Levinson-Durbin algorithm. The time series for the analysis is replaced with a periodic time series by the replacement, and is not suit for the analysis of transient signal. Therefore, we introduced a method which does not apply above replacement and applies LPC locally, to obtain local characteristics of transient signal. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | transient signal analysis / electro-magnetic noise / local linear predictive coding |
| Paper # | SIP2017-9,IE2017-9,PRMU2017-9,MI2017-9 |
| Date of Issue | 2017-05-18 (SIP, IE, PRMU, MI) |
| Conference Information | |
| Committee | PRMU / IE / MI / SIP |
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| Conference Date | 2017/5/25(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Eisaku Maeda(NTT) / Seishi Takamura(NTT) / Yoshitaka Masutani(Hiroshima City Univ.) / Makoto Nakashizuka(Chiba Inst. of Tech.) |
| Vice Chair | Seiichi Uchida(Kyushu Univ.) / Hironobu Fujiyoshi(Chubu Univ.) / Takayuki Hamamoto(Tokyo Univ. of Science) / Atsuro Ichigaya(NHK) / Yoshiki Kawata(Tokushima Univ.) / Yuichi Kimura(Kinki Univ.) / Masahiro Okuda(Univ. of Kitakyushu) / Shogo Muramatsu(Niigata Univ.) |
| Secretary | Seiichi Uchida(Kyoto Univ.) / Hironobu Fujiyoshi(NTT) / Takayuki Hamamoto(NTT) / Atsuro Ichigaya(Chiba Inst. of Tech.) / Yoshiki Kawata(Aichi Inst. of Tech.) / Yuichi Kimura(Nagoya Inst. of Tech.) / Masahiro Okuda(Ritsumeikan Univ.) / Shogo Muramatsu(Chiba Inst. of Tech.) |
| Assistant | Masaki Oonishi(AIST) / Takuya Funatomi(NAIST) / Kei Kawamura(KDDI R&D Labs.) / Keita Takahashi(Nagoya Univ.) / Ryo Haraguchi(Univ. of Hyogo) / Yasushi Hirano(Yamaguchi Univ.) / Osamu Watanabe(Takushoku Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Pattern Recognition and Media Understanding / Technical Committee on Image Engineering / Technical Committee on Medical Imaging / Technical Committee on Signal Processing |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Local linear predictive coding for characterizing electro-magnetic noise |
| Sub Title (in English) | |
| Keyword(1) | transient signal analysis |
| Keyword(2) | electro-magnetic noise |
| Keyword(3) | local linear predictive coding |
| 1st Author's Name | Fumihiko Ishiyama |
| 1st Author's Affiliation | NTT(NTT) |
| 2nd Author's Name | Yuichiro Okugawa |
| 2nd Author's Affiliation | NTT(NTT) |
| 3rd Author's Name | Yoshiharu Akiyama |
| 3rd Author's Affiliation | NTT(NTT) |
| Date | 2017-05-25 |
| Paper # | SIP2017-9,IE2017-9,PRMU2017-9,MI2017-9 |
| Volume (vol) | vol.117 |
| Number (no) | SIP-47,IE-48,PRMU-49,MI-50 |
| Page | pp.pp.49-54(SIP), pp.49-54(IE), pp.49-54(PRMU), pp.49-54(MI), |
| #Pages | 6 |
| Date of Issue | 2017-05-18 (SIP, IE, PRMU, MI) |